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USGS Daily Statistics for Idaho

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The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 12310100 KOOTENAI RIVER @ TRIBAL HATCHERY NR BONNERS FERRY


Boundary County, Idaho
Hydrologic Unit Code 17010104
Latitude  48°42'19", Longitude 116°22'11" NAD83
Gage datum 1,699.88 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 2002-10-01 -> 2020-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 9,370 6,200 6,960 14,200 20,200 29,300 21,000 13,600 10,700 7,470 6,510 18,800
2 8,840 6,090 6,800 14,200 20,600 30,600 20,600 13,500 10,000 6,750 7,430 21,200
3 9,030 6,320 6,860 14,200 20,700 31,200 20,600 13,400 9,650 6,290 7,970 21,700
4 8,780 6,760 6,920 14,300 20,900 30,700 20,500 13,300 9,260 6,050 8,060 21,900
5 8,510 6,930 7,390 14,300 21,500 30,400 20,200 13,300 8,830 5,920 8,290 22,400
6 8,260 7,030 7,950 14,800 22,100 29,300 19,600 13,300 8,810 5,870 8,550 22,500
7 7,810 7,360 8,220 15,000 22,500 28,900 19,400 13,100 8,600 5,840 9,580 22,700
8 7,660 8,040 8,720 15,500 22,800 29,400 18,700 13,000 8,600 5,870 10,100 23,400
9 7,460 8,140 9,130 16,000 23,000 29,400 17,900 13,000 8,610 5,840 10,400 23,100
10 7,370 7,700 9,430 16,300 22,900 29,200 17,700 12,900 8,650 5,760 11,000 22,600
11 7,550 7,510 9,040 16,400 22,900 29,700 17,700 12,900 8,580 5,670 11,400 22,400
12 8,210 7,520 9,260 16,800 23,900 29,800 17,500 12,900 8,490 5,540 12,100 23,100
13 8,300 7,620 10,100 17,200 24,300 29,600 17,100 12,800 8,420 5,430 12,600 23,100
14 8,080 7,820 10,300 16,900 24,600 29,300 16,900 12,800 8,360 5,470 13,600 23,600
15 7,650 8,070 10,800 17,300 25,200 29,400 16,800 12,700 8,340 5,650 14,700 23,400
16 7,110 8,060 12,500 17,200 27,600 29,100 16,600 12,600 8,290 5,650 15,300 21,900
17 7,490 7,640 12,700 17,000 29,200 29,000 16,500 12,600 8,090 5,620 15,300 21,400
18 8,210 7,150 12,200 17,000 29,700 28,500 16,300 12,500 8,050 5,540 16,200 21,600
19 7,970 7,550 12,600 16,900 29,700 27,600 15,900 12,300 8,010 5,460 17,700 22,000
20 7,720 7,980 12,300 16,900 29,700 27,300 15,400 12,300 8,010 5,490 18,900 22,300
21 7,220 7,930 11,800 17,600 29,600 26,900 15,300 12,300 8,110 5,600 18,600 21,800
22 7,280 7,920 12,200 18,300 30,300 26,200 15,000 12,200 8,120 5,580 17,000 21,500
23 7,300 7,660 12,800 19,100 31,600 25,400 14,600 11,900 8,050 5,580 15,800 20,400
24 7,640 7,060 13,000 19,800 31,500 24,500 14,400 11,800 8,020 5,550 15,300 18,800
25 7,620 6,770 14,000 20,300 31,300 23,800 14,300 11,800 8,010 5,500 14,800 16,600
26 7,570 6,970 14,000 20,300 31,000 23,600 14,000 11,700 8,010 5,480 14,700 15,700
27 7,440 7,050 13,900 20,300 30,200 23,200 13,600 11,400 7,950 5,560 14,900 16,500
28 7,030 7,040 13,800 20,400 29,700 22,500 13,600 11,400 7,820 5,700 15,300 16,600
29 6,990 7,080 13,800 20,100 29,700 22,000 13,500 11,400 7,780 5,660 15,900 15,100
30 6,980   13,300 20,000 29,300 21,800 13,700 11,400 7,730 5,660 16,400 12,500
31 6,600   13,500   29,000   13,700 11,100   5,900   10,500